Index: HDDefs.h
===================================================================
diff -u -rc1f28621ec5b4ca6ea1902e91de1abf4207ad934 -r23346b31cb6b8341a682330d418bdfccb108242b
--- HDDefs.h	(.../HDDefs.h)	(revision c1f28621ec5b4ca6ea1902e91de1abf4207ad934)
+++ HDDefs.h	(.../HDDefs.h)	(revision 23346b31cb6b8341a682330d418bdfccb108242b)
@@ -394,6 +394,7 @@
     DIALYSIS_START_STATE = 0,                           ///< Start state of the dialysis sub-mode state machine
     DIALYSIS_UF_STATE,                                  ///< Ultrafiltration state of the dialysis sub-mode state machine
     DIALYSIS_SALINE_BOLUS_STATE,                        ///< Saline bolus state of the dialysis sub-mode state machine
+    DIALYSIS_DIALYZER_REPRIME_STATE,                    ///< Dialyzer reprime state of the dialysis sub-mode state machine
     NUM_OF_DIALYSIS_STATES                              ///< Number of dialysis sub-mode states
 };
 typedef enum Dialysis_States DIALYSIS_STATE_T;          ///< Type for dialysis states enumeration
@@ -427,6 +428,18 @@
 };
 typedef enum Saline_Commands SALINE_CMD_T;              ///< Type for saline command enum.
 
+/// Enumeration of dialyzer reprime states.
+enum Dialyzer_Reprime_States
+{
+    DIALYZER_REPRIME_STATE_DIALYSATE_PUMPS_OFF = 0,             ///< Turn off dialysate pumps and wait for them to stop
+    DIALYZER_REPRIME_STATE_PURGE_PRIOR_1,                       ///< Purge air from an interrupted reprime
+    DIALYZER_REPRIME_STATE_PURGE_PRIOR_2,                       ///< Purge air from an interrupted reprime
+    DIALYZER_REPRIME_STATE_REPRIME,                             ///< Remove air from dialyzer
+    DIALYZER_REPRIME_STATE_PURGE_LINES,                         ///< Purge air from lines after repriming dialyzer
+    NUM_OF_DIALYZER_REPRIME_STATES                              ///< Number of dialyzer reprime states
+};
+typedef enum Dialyzer_Reprime_States DIALYZER_REPRIME_STATE_T;  ///< Type for dialyzer reprime state enumeration
+
 /// Enumeration of ultrafiltration command IDs.
 enum UF_Commands
 {